Boiler-furnace



J. W. WARNER: BOILER FURNACE.

3 Sheets-Sheet 1.

(No Model.)

Pauaeanted Nov. 14

-J. W. WAR ER;

BOILER FURNAGE.

Patented Nov. 14 1893.

3 A M N UNITED STATES PATENT, OF ICE.

JUDsoNw. WARNER, 'OF 'ONEIDA, NEW YORK.

BOILER-FURNACE.

SPECIFICATION. forming part of'Lette'rs Patent No. 508,790, datedNovember 14, 1893.

, A plication filed Meantime. Serial No. 464,974. (No model.)

To all whont it ntay concern:

Beitknown that I, J UDSON W. WARNER, of Oneida, in the county of Madisonand State of New York, have invented certain new andusefulImprovenientsinBoiler-Furnaces; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, referencebeing had to the accompanying drawings, and to the letters and figuresof reference marked thereon, which form part of this specification. Thepresent invention is a sectional boiler especially designed for heatingpurposes, and is an improvement upon the boiler for which I was grantedLetters Patent on the Sthday of September, 1891, No. 459,243; and it hasspecial reference to the construction of the boiler sections wherebyfurnaces of different the novel arrangement of the water circulatfingpipes in the grate; and in the'novel construction and combinations ofparts hereinafter fully described and claimed.

In the accompanying drawings: Figure l is a perspective view,partly'broken, of my improved sectional boiler. nal central verticalsection, and part side elevation of the boiler.

ofsaid sections; Fig.5 is a face view of an intermediate section. Fig. 6is a view of the rear section. Fig-:7 is a face view of the fire boxdividing section. Fig. Sis a detail. 1

As shown in Figs. 1 and 2 the'boiler has two fire boxes, one of which issupplied with fuel by hand as in ordinary surface burning furnaces; andthe other is supplied with fuel from a reservoir as in self-feedingfurnaces.

The fire boxes are situated one behind the other, so that the heatedproducts of combus:

sired.

Fig. 2 is a longitudi- Fig. 3 is a face view of, "one of the reservoirsections, and Fig. 4 a' face view of the opposite reservoir section;saidFigs. 8 and 4 showing the meeting faces tion generated in the firstfire box pass through the fines ofthe second fire box on their way tothe chim ney, and hence in moderate weather ers, or provide both withfuel reservoirs, as

the furnace is made up of sections which may be increased in number, andarrangedas de-r I have shown in the drawings one ar-.

rangement forming a very/satisfactory boiler for heating largebuildings; I have further.

provided numerous brush openings in the sections, and between thesections, so that the entire system of dues can be readily cleanedwithout anyone having. to crawl into the boiler, and without taking thesections apart,

and some of these brush openings or passages perform a most importantoffice in assisting in establishinga thorough circulation of heatedproducts upward between and around the water legs, and in a naturalcourse from the fire to the smoke flue, without diminishing the surfaceexposedtothe radiated heat of,

fuel reservoir sections D,'E, followed by another section B,and arearsectionF. Twelve sectionsin all. 7

Section A consists oftw o vertical hollow water legs A A connected attop .by atransverse Water holding limb or portion A below which isanother transverse water-holding limb A the openingbetween said limbsand the legs being closed by a door a by which access canbe had to thefines.- Q

Intermediate limb A andthe bottom of the sections is a transverse hollowlimb A4 which forms the front wall of the fire chamber 1.

The opening between limbs A A4, and legs A is closed by a door athroughwhichac- I will now describe the boiler cess can be had to the vfire ehamberplg The bottom of the water legs maybe; connected I by atransverse hollow limb A and the opening between the limbs A ,A ,andlegs A'- may be closed by a door a through which access can be had tothe ash pit. The front section may have lateral flanges A on its sidesthrough which pass the section uniting bolts hereinafter referred to.Through the limbs A A are made transverse brush openings A which areproduced by casting or otherwise forming transverse tubes in the limbsopen at both ends as shown. The outer ends of said brush openings areclosed by caps or covers a as shown.

Each section B consists of two vertical water legs 13 connected at topbyatubular limb 13 below which is another limb B and below this(aboutcenter of legs B) is another'limb B which latter is, as shown,deeper than either of the other limbs so as to have the most watersurface in that part of the section exposed to the fiercest heat. Thelimbs B may also be connected at bottom by a transverse limb B The limbs13 B may be directly connected at center by a vertical hollow tube B andlimbs B ,B ,bya similar tube B By this means a most thorough circulationof wateris provided, and a large water heating surface exposed to theheated products of combustion.

Through each limb B B B are formed brush openings b similar to those insection A and formed relatively thereto so that when a section orsections 13 are set up with sections A, the brush openings correspond inthe severalsections, and form direct passages longitudinally through theboiler. Access to the brush openings in limbs B is had through door a ofsection A.

The section C is constructed like sections B with but one difference,which is, that instead of having supports for a grate as do sections B,it has an additional transverse limb O which ousts the grate bar andforms a bridge wall or back or fire chamber 1 as shown in Fig. 2. Likeparts and features of sections B and C are similarly lettered.

The grate sections D, E, are constructed with legs and limbs likesections B,but in the meeting faces of sections D, E, which are alwaysto be placed together, is formed the coal reservoir or feeder, half ineach section. The opposed faces of the sections D, E, as shown in Figs.3-and 4 have a curved shallow channel'D' E respectively formed in them.The front and back walls 01, e, of this channel extend between limbs B Band B B and are hollow as shown, the lower end of the channelterminating at the lower edge and centrally of limb'B, and at the upperend of the channel terminating at the side of the section and at end oflimb B The walls (Z, c, also form part of the walls of the limbs 13, B Bwhich are narrowed by said channel. The top and bottom or opposite sidewalls (1 e 01 c of this channel in the respective sections are so formedthat when the sections D, E, are put together, a close continuouspassage or fuel reservoir or feeder is produced between said sections asshown. The upper end of said reservoir is closed bya door D in the sideof the complete boiler as shown. This construction enables the reservoirto be more readily filled than if it were on top of the boiler. Thebrush openings may extend through the front and back walls of thereservoir section if desired.

A damper E is located in the upper part of the reservoir and can beadjusted by a damper rod E as indicated in the drawings, so that beforethe door can be opened the damper rod has to be thrown back which opensthe damper inside and allows the gas which has accumulated in the top ofthe coal to pass off into the flue, which otherwise would ignite andexplode on opening the door. The rear section B corresponds in contourwlth the other sections and has an opening F for the escape of theproducts of combustionnear its top about opposite the fiues betweenlimbs B B, then it has another opening F below the level of limb Bclosed by a suitable door through which access can be had to the firechamber, and below this another opening F closed by a suitable doorthrough which access can be had to the ash pit. The section is hollowand water can circulate therethrough substantially as in the frontsection. It may also be formed with brush openings if desired.

As shown in Fig. 2 a second fire chamber 2 is formed between section 0and rear section F by the intermediate sections B, D,E, B,and access ishad thereto through opening F in the rear section, and to the ash pitthereunder through opening F It will be noticed that the limbs of theintermediate sections are somewhat oval shaped, being wider at top sothat when the sections are assembled together the limbs touch at the topthus forming closed transverse spaces or pockets 3 in the top of thefire chamber, and in the longitudinal flues 4, 5, formed between theseries of limbs B, B and B B as shown. These pockets serve to trap theheat, but it is not confined therein, simply retarded, as the openingsZ), I), form short connecting fines between the pockets so that the heatcirculates up into the pockets and then along through openings b betweenthe pockets to the ends of the flue as indicated by the tailless arrowsin Fig. 2, while the heavier currents proceed through the main lines asindicated by the ordinary arrows in said figure. By thisinter-circulation between the pockets the heat is induced to ascendthereinto and clogging thereof by deposits of dust and soot is retardedand the limbs and pockets are subject'to both direct and radiant heat,but if openings 19 were omitted and the pockets closed at top, onlyradiant heat would enter therein.

The sections have lateral perforated ears G on their sides through whichpass bolts 9, g, uniting adjoining sections as indicated in thedrawings. The bolts may pass through the side flanges of the frontsection and through ICO the rear section as indicated in the drawings.It will be seen that by this fastening any number of the sectionscmay beunited in any order desired. The several sections are formed on theiropposed faces respectively, near their outer edges with grooves andtongues as indicated at H, H, Fig. 2 so that a. close joint can be madebetween the sections from the outside. Lateral transverse recesses l, I,are made in the opposed faces of adjoining sections, and when thesections are secured together these recesses form-brush openings in theside of the boiler through which access can be had to the pockets abovethe fire chamher for cleansing them. These openings are closed bysuitable doors L which maybe secured to frames L bolted on the sectionsas indicated in the drawings.

I, I, designate water pipes extending 2o transversely through the gratesupporting sections, and lying just beneath and in contact with thegrate and forming part thereof. In practice I propose tomount the gratepieces on these pipes, but this particular feature ,25 forms the subjectmatter of another applicatlon for patent filed-by me on the'9th day ofMarch, 1893, Serial No. 465,297, and is therefore not hereinspecifically claimed. Each pipe I is preferably connected at one end bya suitable joint D higher than the grate to the section by which it issupported, and at the otherendto theopposite side of the sect1on, or itmay be connected by a pipe t to the front or rear section as shown inFigs. 1 and 2 which is below the grate, By this means a more direct andpowerful circulation of water through the pipes is produced, and thetemperature of the grate is reduced and utilized toraise the temperatureof the water.

'Each section isconnected at bottom to a drum J by suitable couplings j,and at top to a drum K by couplings is. If desired each section, or

anyset of sections, may be directly connected to aradiator, so-thatdifferent and independcut water circuits are established from and to theboiler through difierent or independent holler sections, and thosesections subjected to greatest heat made to serve radiators farthestfrom the boiler. It will be of course obvious that sections 0, D, E, maybe omitted when it is desired to make only a surface burning boiler. Orthat section 0 may be omitted, or sections 1), E, transposed to thecentral portion of the boiler when it is desired to have a self feedingboiler, and that the length and capacity of the boiler may be governedby the number ofsections used in it.

It will be seen that each and-every section extends from the top down tothe very bottom of boiler, forming as it does, asectional base,

which feature is new and very essential, as it often happens after aboiler has been set up,

it 1s found too small, or for some reason it is necessary to increasethe size, which in my boiler can be'done by simply removing the front orback section and-adding as man more as may be necessary.

Having described ,my invention, what I claim as new, and desire tosecure by Letters Patent thereon, is.. V a

1. In a sectional boiler, the combination Withthefront, rear andintermediate water holding sections, of a series of independentwater-circulating pipes extending between fire-chamber and ash pit andconnected by one end to an intermediate section, and by the other end tothe front or rear section, sub stantially as set forth.

2. In a sectional boiler, the combination with a water holdingsection,having vertical water holding legs and transverseyvater-holdinglimbs, and constituting part of the firechamber and flue passages of aseparate water circulating pipe extending transversely betweenandentirely through the legs of the section, below and adapted tosustain a grate piece, substantiallyas described.

3. In a sectional boiler the combination of the front, rear, andintermediate sections, and the sections D, E, having legs B andtransverse limbs B B B and coal reservoir partly formed in the opposedfaces of said sections, opening at the side of the boiler, and,

the water-drum at top of the boiler substantially as specified.

4. In a boiler having horizontal return flue passages, the combinationof the hollow front and rear sections and hollow intermediate sections,constructed substantially as, described so that each forms and containspart of the base, ash-pit, fire chamber and upper and too lowerfiuepassages of the boiler and supports part of the grate; and a gratepiece mounted on each of said intermediate sectionstbetween the ash-pitand fire-chamber portions thereof; with another intermediate sectionsimilar to the others but having the grate piece replaced by an integralhollow watercirculating limb, whereby two fire-chambers are formed inthe boiler, substantially asset forth.

5. In a return flue boiler, the combination of the transversesectionsforming part of the ash-pit, fire chamber, and having transversewater-holding limbs above the fire chamber, and pockets intermediatesaid limbs;;and.lateral recesses in the meeting faces of the sec-.

tions forming openings in the sides of the boiler at the ends of saidpockets for clean ing them, substantially as specified.

6. In a return flue boiler furnace, the com-..

bination of the separate sections each forming part of the ash-pitandfire-chamber and having transverse water-holding.limbsabove the firechamber,and pockets intermediate said limbs; and recesses in the meetingfaces.

of the sections forming lateral openings in the sides of the boiler atthe ends of said pockets, and transverse openings through said limbs,substantially as set forth.

7. In a return flue sectional boiler, the combination of similartransverse water-holding sections each forming-part of. the base,ashpit, fire-chamber, and fiue-pa ssageaand haw.

ing lateral recesses in their opposed meeting faces forming brushopenings between the sections, substantially as described.

8. For a sectional boiler, the herein described water-holding section B,having vertical legs B, transverse limbs B B B and brush openings b insaid limbs, and lateral recesses in its sides at the ends of the lowerlimbs, substantially as set forth.

9. For a sectional horizontal return flue boiler, the herein describedwater holding section 0, having vertical legs B, transverse limbs B B Band hollow transverse back C below and separated from said limbs,constructed as shown.

10. For a sectional boiler, the hereindescribed section 0, havingvertical legs B, transverse limbs 13*, B B hollow transverse Water-back0 below said limbs, brush openings through said limbs, and lateralrecesses in the legs adjoining the lower limbs,for the purposespecified. I

11. In a sectional boiler the combination of the front section A, rearsection F, intermediate sections B, and intermediate coal reservoirsections D, E, the water circulating pipes Supported in sections B, D,E, and extending therethrough' communicatingat their opposite ends withseparate sections by connections exterior to the sections, and thesupply and return pipes, all substantially as set forth.

12. The combination of the middle section 0, the fuel feed reservoirsections D, E, having curved reservoir channels in their meet ing facesat one side of the section 0, the intermediate similar sections B, B, ateach side of section O, and the outermost front and rear sections A andF, each section forming part of the base, ash-pit, fire chamber and fluepassages, and all combined to form a horizontal return flue boiler,having two fire chambers, one of which is beneath the feed reservoir,substantially as specified.

In testimony that I claim the foregoing as my own I affix my sign-atu rein presence of two witnesses.

JUDSON W. WARNER.

Witnesses:

JAMES D. CooK, D. A. SOHUYLER.

